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authorAnton Tananaev <anton.tananaev@gmail.com>2017-08-18 05:42:43 +1200
committerAnton Tananaev <anton.tananaev@gmail.com>2017-08-18 05:42:43 +1200
commit4a14edeea2b98062d1d61fe5eee5e1dfaf664916 (patch)
tree74855163a092e3a3f7e7c54d05c5bdc6ed7f1827 /src/org/traccar/protocol/EskyFrameDecoder.java
parenta1f7908769d296aed7766151340426e612883c6f (diff)
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Implement eSky ES610 protocol
Diffstat (limited to 'src/org/traccar/protocol/EskyFrameDecoder.java')
-rw-r--r--src/org/traccar/protocol/EskyFrameDecoder.java39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/EskyFrameDecoder.java b/src/org/traccar/protocol/EskyFrameDecoder.java
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+++ b/src/org/traccar/protocol/EskyFrameDecoder.java
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+/*
+ * Copyright 2017 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.frame.FrameDecoder;
+
+public class EskyFrameDecoder extends FrameDecoder {
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {
+
+ buf.readerIndex(buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 'E'));
+
+ int endIndex = buf.indexOf(buf.readerIndex() + 1, buf.writerIndex(), (byte) 'E');
+ if (endIndex > 0) {
+ return buf.readBytes(endIndex - buf.readerIndex());
+ } else {
+ return buf.readBytes(buf.readableBytes()); // assume full frame
+ }
+ }
+
+}